| UNSPSC Code | 41116130 |
|---|---|
| EC Index Number | 208-953-6 |
| NACRES | NA.21 |
| Web Name Suffix Override | pH indicator, ACS, Reag. Ph Eur |
| MDL number | MFCD00011750 |
| SMILES string | [Cl-].N(C)(C)c1ccc(cc1)[C+](c3ccc(cc3)N(C)C)c2ccc(cc2)N(C)C |
| InChI | 1S/C25H30N3.ClH/c1-26(2)22-13-7-19(8-14-22)25(20-9-15-23(16-10-20)27(3)4)21-11-17-24(18-12-21)28(5)6;/h7-18H,1-6H3;1H/q+1;/p-1 |
| InChI key | ZXJXZNDDNMQXFV-UHFFFAOYSA-M |
| grade | ACS reagent |
| agency | reag. Ph. Eur. |
| form | solid |
| potency | 420 mg/kg LD50, oral (Rat) |
| composition | dye content, ≥90% spectrophotometric assay (, calc. on dried substance) |
| impurities | <0.10% Michler′s ketone |
| loss | ≤7.5% loss on drying, 110°C, 4 h |
| pH | 2.5-3.5 (20 °C, 10 g/L in H2O) |
| mp | 189-194 °C |
| solubility | 10 g/L |
| density | 1.19 g/cm3 at 20 °C |
| bulk density | 220‑400 kg/m3 |
| λ<sub>max</sub> | 589-594 nm in water |
| absorbance ratio | 0.98-1.20 (Ratio, E (lambdamax - 15 nm)/E (lambdamax + 15 nm)) |
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| storage temp. | 2-30°C |
|---|
| Quality Level | 200 |
|---|
